How do I transfer my apps to a new iPhone?

Turn on your old phone then go to settings<General<Transfer or reset IPhone (At the bottom) This work with an iPad too

Please tell me if you have any problems 😀

See here: link-> Transfer data from your previous iOS or iPadOS device to your new iPhone, iPad, or iPod touch - Apple Support

Apps will be set to download from the App Store once the setup and data transfer is complete. Just let the iPhone sit connected to Wi-Fi and it will download all your Apps in the same order and folder arrangement you had them on your old device.